Herbicide selectivity to five species of turfgrasses

Planta Daninha

Christoffoleti, P.J.¹  Aranda, A.N.¹  Universidade Nacional de Assuncion¹  Universidade de São Paulo, Piracicaba¹ 

关键词: Axonopus affinis;    Zoysia japonica;    Cynodon dactylon;    Zoysia matrella;    Stenotaphrum secundatum.;   

DOI  :  10.1590/S0100-83582001000200016

学科分类：农业科学（综合）

来源: Sociedade Brasileira da Ciencia das Plantas Daninhas (S B C P D) / Brazilian Society of Herb Science

【 摘 要 】

Among the weed control options, herbicide is certainly one to be considered for weed control in turfgrass; however, little has been published about herbicide selectivity, specially under Brazilian landscape conditions. Therefore, this research was conducted at USP/ESALQ, Piracicaba-SP, Brazil, to evaluate herbicide selectivity to turfgrass of pre-planting application herbicides (sulfentrazone at 1.4 kg a.i.ha-1 and oxadiazon 1.0 kg a.i.ha-1) and post-emergence application herbicides (halosulfuron at 112.5 g a.i.ha-1, 2,4-D at 2.010 kg a.i.ha-1 and MSMA at 2.4 kg a.i.ha-1), in five species of turfgrass: Axonopus affinis Chase, Zoysia japonica, Cynodon dactylon, Zoysia matrella and Stenotaphrum secundatum. It was concluded that herbicide selectivity to the turfgrass species studied is a function of the grass species and herbicide type and rate sprayed. Among the tested herbicides, halosulfuron at 112.5 g a.i.ha-1 and 2,4-D at 2010 g a.i.ha-1 were the most selective ones, and the grass species of the genus Zoysia (Z. aponica and Z. matrella), were, in general, the most tolerant to all the herbicides tested.

【 授权许可】

Unknown